the 2018 channel lineup might be -
BRF 1 - 172.225 - mobs tx pl 131.8 - south half of forest - West Fork
Ranger District (RD) - bases at Deer Mtn + (Barecone in West Fork
District)
BRF 2 - 169.625 - mobs tx pl 146.2 - north half of forest - Derby RD +
Stevensville RD + Sula RD - bases at Williams Mtn + Deer Mtn + Sula
Peak
BRF 1 repeaters are at Lookout and Sport - input is 165.225
BRF 1 was previously 168.75 R with 168.15 input - changed in 2017 or 2018 maybe
BRF 2 repeaters are at Teepee + Ward - input is 163.4625
The Hells Half repeater is a stand alone repeater with its own freq
pair - 169.975 R with 164.15 input - this is in the West Fork RD
Common 1 is 163.7125 - can be used as a fire tac if tac 3 and tac 4 are busy
Common 2 is 168.6125 - used by roads and recreation crews
Work Channel is 169.175 - (not sure what this is used for)
Air to Ground 52 is primary - 168.3875
Air to Ground 53 is secondary - 168.4875 - AG53 is only used if AG52 is busy
all simplex channels are PL 0.0 except as noted - all repeater TX PL 0.0
Teepee Rptr serves the Sula RD
Ward Rptr serves the west side canyons
Lookout Rptr serves the West Fork RD
Sport Rptr serves the Selway Wilderness
Tac 3 - north - 166.55
Tac 4 - south - 166.9875
Tac 3 and Tac 4 are only used for fire and project work
Region 1 Tac - 167.1125 - used in all Region 1 National Forests (all
in MT iirc) - probably for fires only
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basically it is a pretty simple system - home channels are 1 and 2 -
if out of range of a dispatcher, try a repeater - for onscene comms,
use the tac channels or common or work channels - if out of range of
another field unit, try a direct channel or a repeater channel